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Clear DNS
Difficulty
Very easy
Operating Systems
Windows
XP, 2000, VISTA, 7, 8, 8.1, 10
Open a Command Prompt with Administrative Privileges and type
ipconfig /flushdns
MAC OS
10.10
Open a Terminal and type
sudo discoveryutil mdnsflushcache
sudo dscacheutil -flushcache
10.7, 10.8, 10.9
Open a Terminal and type
sudo killall -HUP mDNSResponder
sudo dscacheutil -flushcache
10.5, 10.6
Open a Terminal and type
sudo dscacheutil -flushcache
10.4 and earlier
Open a Terminal and type
sudo dscacheutil -flushcache
Linux
nscd
Open a Terminal and type
- Restart service
service nscd restart
- Reload Service
service nscd reload
dnsmasq
Open a Terminal and type
- Restart service
service dnsmasq restart
BIND
Open a Terminal and type
- Restart service
rndc restart
- Flash specific domain
rndc flushname domain.tld
- Flash view (LAN)
rndc flush lan
Routers
CISCO
IOS
Switch to enable mode
- Clear specific domain
clear host domain.tld
- Clear all domains
clear host *
Juniper
JunOS
- Clear all domains
clear dns
- Clear specific domain
clear security dns-cache domain.tld
FritzBox
The latest versions of the firmware do not allow for telnet, in those cases a router restart is required
Enable Telnet mode by dialing: #96*7* Connect with a telnet client to the router and type
- Stop DNS Service
multid -s
- Start DNS Service
multid
Web Browsers
Google Chrome
Visit the following URL <shx> * chrome:net-internals/#dns <sxh>chrome:net-internals/#dns</sxh>
In the page click on the Clear host cache button.